C Program to write loadrunner parameter output to text file

• Assign the file name & location to the variable filename.
• fopen() function is used to open the file.
• a+ – Opens a file in read and write mode and sets pointer to the first character in the file. And, it can’t modify existing contents.
• Use lr_eval_string() function to read the correlation parameter value.
• fprintf() function is used to write into the file. 
• fclose() function is used to close the file.

C Program: